Metal-shearing machine.



v PATENTED DEC. 15, 1903. G. E. LINGBNPELTBR. METAL SHBARING MACHINE.

APPLICATION IILiED JULY 9 1903 4 SHEETB-SHEET 1.

no MODEL.

' PATENTED DEG. 15,1903; .0. E. LINGENPELTBR. METAL SHEARING MACHINE.

APPLICATION FILED JULY-B. 1903.

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H0 HODPLv I I n. I It. I... illlllilill FHU r l I v n"- PA-TENTED 1130115, 1903.

0. E. LINGENFELIEE METAL SHBARING MACHINE.-

Bg SHEET s.

APPLIUAI'ION FILED JULY 9. 1903.

H0 MODEL.

PATENTED DEG. 15,1903; 0. E. LINGBNPELTER. METAL SHEARING MACHINE APPLIOATION FILED JULY 9, 1903.

4 SHEETS-SHEET 4.

"No MODEL.

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m Md 7 I'll 1 UNITED STAT Patented December 15, 1903.

PATENT OFFICE.

CARL n. LINGENFELTER, or cnIoAeo, ILLINoIs, Ass eNon TO scULLY ,STEEL & IRONCOMPANY, oFonIcAeo, ILLINOIS, A CORPORATION.

MVETAL-SHEAARING' MACHINE.

SPECIFICATION forming part of Letters Patent No. 746,716, dated December 0 Application filed July 9, 1903. seen 1T0. maria. (N0 model-) T0 all whom, it may concern:

Be it known that I, CARL E. LINGENFELTER, a citizen of the United States, and a resident of Chicago, county of Cook, and State ofIllinois, have invented certain new and useful Improvements in Metal-Shearing-Machines, of which the following is declared to bea full, clear, and exact description. Y

The invention relates to that typeof metal shearing machines in which a pair ofcooperating rotary cutters are employed} and more particularly to machines provided with rotary cutters and of such a construction that plates of any width or length may be sheared. Some of the machines of this class heretofore constructed have employed worm gearing,

which is quite inefficient in transmitting the power to the rotary cutters.

The object of the present invention isto provide an improved construction of such machine in which trains ofspur-gearing are employed for driving the cutters; further, to provide actuating mechanism by which. the cooperating rotary cutters may be driven with the same peripheral speed in spite of any difference in their size, and also to provide satisfactory means for adjustably mounting one of the driven cutters for shearing plates differing in thickness.

The invention consists in the features of construction, combinations, and arrangement of parts hereinafter set forth, illustrated in the accompanying drawings, and

particularly pointed out in the. appended claims. g

The present improved construction comprises a narrow upright frame upon which the pair of cooperating rotary cutters are suitably mounted, with the cutting-plane of said cutters extending longitudinally-of the frame. Separate trains of spnr-gearing'are provided for driving-the separate cutters, said geartrains being mounted to rotate in planes parallel with the cutting-plane and being arranged, respectively, upon opposite sides of such planeand upon opposite sides of the path of travel of the work, so that a sheet of metal of any width or length may be operated. upon. The two gear-trains are preferably connected by a difierential compensating gear, which is driven from 'asuitahle counter-shaft.

In the drawings, Figure 1 is a side view of the improved shearing-machine. Fig. 2 is a front view; Fig. 3, a view of the other side of the machine, and Fig. 4; is a rear view. Fig. 5 is a detail section on the line 5 5 ofFig. Fig. dis a detail section on the line 6 6 of Fig. '5. Fig. 7 isa detail section on the line .77 of Fig. 5. Fig. 8 is a detail side view of the adjusting mechanism for the lower cutter. Fig.9 is a detail section on the line 9 9 of Fig. 3. Fig. 10 isa detail view on the line 10 10 of Fig. 9.

The narrow upright frame of the machine comprises upper'and lower web-sections 11 and 12. The upper and lower rotary cutters 13 and 14 are mounted at the forward part ofthemachine-frame, with their inner cutting edges arranged in the plane a a, which extends longitudinally of the machine-frame.

Laterally-projecting flanges or guides 15 and v from the cutters upon opposite sides of the frame. One section of the sheared metal as it passes rearwardly from the cutters is guided along the lower face 17 of the flange 15, (see Fig."3,) and the other section of the sheared metal is guided rearwardly along the upper face 18 of the flange 16. (See Fig. 1.) One of the flanges 15 is inclined rearwardly and downwardly, as shown, so that divergent paths of travelfor the sheared metal are formed. The flanges 15 and 16, moreover, cross and merge into each other at the rear portion of the machine, thus adding to the rigidity of the frame. Flange 15 extends along the ,lower portion of the upper web-section 11, while the flange 16 extends along the upper portion of the lower web-section12, and these web-sections adjacent the paths of travel of the work are offset, as shown most clearly in Fig. 4, upon opposite sides of the cutting-plane (ta. l

The cooperating rotary cutters are driven by separate sets of gear-trains formed of spur-gears preferably mounted to revolve in planes parallel to the cutting-plane. The

train of gears for driving the upper cutter is of the machine-frame, extend rearwardly mounted on one side of the frame, above the path of travel of the work, while the geartrain for operating the lower cutteris mounted upon the opposite side of the frame and below the path of travel of the work. The upper and lower cutters 13 and 14 are respectively fixed to the ends of spur-gears 19 and 20 by screws, as indicated in Fig. 7, or in any other suitable manner.

The gear 19 is mounted to revolve upon a shaft 21, the outer end'of which is supported in an offset portion 22 of the upper frame section 11. The inner end of the shaft 21 is supported by a plate 23, (see Fig. 1,) bolted or otherwise suitably secured in place to the front part of the upper frame-section. A spur-gear 24, mounted to revolve in a recessed portion of ofiset 22 and meshing with the teeth of the gear 19, is fixed upon a revoluble shaft 25,journaled in suitable hearings in the upper frame-section. A large spurgear 26, fixed to the outer end of the shaft 25, meshes with the teeth of the pinion 27, (see Fig. 9,) which is driven by one of the members of the differential compensating gearing. In a similar manner the gear 20, connected to the lower rotary cutter, is mounted to revolve a shaft 28, the outer end of which is supported in an offset portion 29 of the lower frame-section 12, the inner end of the shaft 28 being supported by a plate 30, (see Fig. 3,) bolted or otherwise suitably secured to the lower frame-section. The gear 20 is driven through the medium of an idler-gear31, which meshes with the teeth of a gear 32, fixed upon the inner end of a shaft 33. The gears 20, 31, and 33 revolve, as shown, within a suitable recess formed in the offset portion 29 of the lower frame-section, and the shaft 33 is mounted to revolve in suitable bearings formed in said offset portion. Upon the outer end of the shaft 33 is fixed a large spur-gear 36, which meshes with the teeth of the small gear or pinion 37, formed in piece with or suitably connected to a large spur-gear 38. The latter, together with pinion 37, revolve upon a shaft 39,which is fixed to or held within a suitable laterally-extending offset or support 40, (see Fig. 4,) bolted to the lower framesection 12. A transverse cross-shaft 41 is journaled in a suitable bearing-boss 42, which extends on opposite sides of the frame and is located between the paths of movement of the separate sections of the sheared 'metal. Av pinion 43, fixed to one end of the crossshaft 41, meshes with the large spur-gear 38, and a pinion 44, fixed to the opposite end, meshes with a large spur-gear 45, connected to the difierential gearing.

The differential or compensating gearing, through which the power is applied to the separate cutters, is of usual construction and comprises (see Figs. 9 and 10) a large intermediate gear 46 and the oppositely-facing beveled gears 47 and 48, all mounted to loosely revolve upon a shaft 49,which is fixed within a suitable support 50, bolted to the upper frame-section 11. A connecting beveled pinion 51, meshing with the teeth of the beveled gears 47 and 48, is journaled, as shown, upon the intermediate gear 46.

The intermediate gear 46 may be driven in any suitable manner, as by a small pinion 52,

fixed upon the end of a shaft 53. The latter is journaled in suitable bearings formed in the upper frame-section and on an offset supporting-arm 54, bolted thereto. A large spurgear 55, fixed to the opposite end of the shaft 53, meshes with the teeth of a pinion 56, keyed to a shaft 57. The latter is journaled in suitable bearings formed upon the upper end of the frame-section 11 and upon an offset supporting-arm 58, bolted thereto. A pulley 59 is fixed upon the shaft 57, through which power may be applied from a countershaft through the medium of a belt.

The beveled pinion 47 on one side of the differential gearing is connected to or formed in piece with the pinion 27, and the beveled pinion 48 upon the opposite side of the differential gearing is connected to or formed in piece with the large spur-gearing 45, so that power is applied equally to. rotate the cutters l3 and 14 through the medium of the gear-trains described. The gearing is such that when all members of the differential gearing rotate together the cutters will be driven with the same speed of rotation, and if it is assumed that the gears 27 and 45 were rigidly connected together instead of being independently driven through the medium of a differential gearing the cutters would rotate with the same peripheral speed, provided they were of the same diameter; but it frequently happens that the cutters are not of exactly the same diameter-for example, one may be ground smaller than the other in sharpeningso that even though the speed of rotation of the cutters were the same their peripheral speeds would be different; but by independently driving the separate rotating cutters through the medium of a differential gearing, such as described, power will be applied equally to both cutters, although the speed of rotation of one, if larger, may lag behind that of the other, but the peripheral speed of each in operating upon the work will be the same.

The manner of driving the rotary cutters 'is advantageous to maintain a uniform shearing action to rapidly sever the metal plate. It the peripheral speeds of the cutter difier a great amount of unnecessary friction is de veloped, and the heat generated may be even snfficient to draw the temper of the cutters.

It will of course be understood that the gearing described may be widely varied without departing from the essentials of the invention. The difierential gearing and pulley-shaft could be located, if desired, below the path of travel of thework and the opposite side of the machine-frame from that shown and described.

To adjust the cutters for shearing metal plate of diife'rent thickness, the shaft 28, upon I ally-journaled shaft, so that cutter 14 and its drive-gear 20 may be raised and lowered. lhe adjusting means preferably comprises a worm-wheel 60, fixed upon the outer end of the shaft 28 and meshing with the teeth of a Worm 61. 'The latter is journaled but held against longitudinal movement between suitable bearing-blocks 62, fixed to the outer face of the offset 29. The squared outer end 63 of the worm'may be turned by a suitable crank or wrench to rotate the eccentrically-joup naled shaft 28 and adjust the position of the lower rotary cutter 14 and its drive-gear 20.

In order that the gear 31 may properly mesh with gear 20 in any of its shifted positions, it is mounted to rotate npona laterally-shiftable shaft 64. The latter is supported between the ends of a pair of links 65, swiveled upon the eccentrically-journaled shaft 28, and a second pair of links 66, journaled upon the revolving shaft 33, upon which the gear 32 is mounted. ,In'this manner the lower rotary cutter 14 is rigidly but adju'stably supported upon the eccentrically-jonrnaled shaft 28, and the adjustment may be effected without in any way altering the mesh of the gears20, 31, and 32.

It is obvious that numerous changes may be made in the details of structure without departure from the essentials of the inven-' tion.

Having described my invention, what I connected difectly to each of said cutters, said gear-trains being located upon opposite sides of the path of travel of the work. and arranged to revolve in planes parallel to the cutting-plane, connecting-gearing between said gear-trains and means for actuating same.

2. In shearing-machines, a suitable supporting-frame, a pair of cooperating rotary cutters mounted on said frame, two trains of spur-gears for respectively actuating said cutters mounted upon opposite sides of said frame, a transverse cross-shaft geared respectively to said gear-trains and means for actuating said connected gear-trains.

3. In shearing-machines, a suitable supporting-frame, a pair of cooperating'rotary.

cutters mounted on said frame and arranged. with their cutting-plane extending longitudinally thereof, two trains of spur-gears for respectively actuating said cutters mounted upon opposite sides of the path of travel of posite the work and upon opposite sides of the cutting-plane and arranged to revolve in planes parallel to the latter, a connecting cross-shaft geared respectively to said trains and means for actuating the same. 7

'4. In shearing-machines, a suitable supportin -frame, a pair of rotary cutters, means.

27 for guiding theseparate sections of the sheared metal in divergent paths extending rearwardly from the cutter along opposite sides of said frame, a transverse cross-shaft journaled at the rear of the machine between the paths of travel of the separate sections of the sheared metal, gearing connecting each end of said crossshaft and one of said cutters and means for driving said gearing.

5. In shearing-machines, a suitable supporting-frame, apair of rotary cutters mounted on said frame with their cutting plane extending longitudinally thereof, means for guiding the sheared metal in paths diverging rearwardly from said cutters along opsides of the frame, two trains of spurgearing mounted on said frame to revolve in planes parallel with the cutting-plane, connected respectively to said cutters and arranged on opposite sides of the cutting-plane and upon opposite sides of the path of travel of the sheared metal, a transverse cross-shaft journaled at the rear of the frame between the paths of travel of the separate sections of the sheared metal, pinions on the ends of said shaft engaging respectively with said separate gear-trains and means for driving said gear-trains.

6. In shearing-machines, a pair of rotary cutters, a difierential compensating gearing through which power is applied to both of said rotary cutters and means for driving said compensating gearing.

7. In shearingmachines, compensating gearing, means for actuating the same, and a pair of cooperating rotary cutters geared respectively to separate members of said compensating gearing.

8. In shearing-machines, a 'difierential compensating gearing, means for driving the same separate spur-gears operated by said difierential gearing, a pair of rotary cutters and a gear-train ext-ending between each of said cutters and one of said spur-gears.

9. In shearing-machines, a suitable supporting-frame, a pair of rotary cutters mounted thereon, a differential compensating gearing mounted on one side of the frame and upon one side of the path of travel of the a differential ating rotary cutters, an adjustable shaft whereon one ofsaid cutters is mounted, means for actuating said cutters and shiftable spurgearing between said actuating means and said adjustablY-mounted cutter.

11. In shearing-machines, a pair of cooperating rotary cutters, an adjustable shaft whereon one of said cutters is mounted, operating-gearing for said cutters comprising a shaft held against lateral shift and laterally shiftable, intermeshing spur-gears connecting the latter shaft and said adjustable shaft.

12. In shearing-machines, a pair of cooperaling rotary cutters, an eccentrically-journaled shaft whereon one of said cutters is rotatably mounted, operating-gearing for said cutters and laterally-shiftable intermeshiug spur-gears between said operating-gearing and said eccentrically-journaled shaft, said gears being adjustable with said shaft.

13. In shearing-machines, a pair of cooperating rotary cutters, an eccentrically-journaled shaft whereon one of said cutters is retatably mounted, a stationary shaft, a laterally-shiftable shaft, links supporting the latter and mounted respectively upon said stationary shaft and said eccentrically-journaled shaft, intermeshingspur-gears'mounted upon said shafts, drive-gearing for said spur-gears and for the other of said cutters, the cutter on said eccentrically-journaled shaft being fixed to the spur gear rotatablymounted thereon.

14. In sllealingmachines, a pair of cooperating rotary cutters, an eccentrically-journaled shaft, a spur-gear journaled to said shaft to which one of said cutters isfixed, a second stationary shaft, a spur-gear mounted thereon, a laterally-shiftable idler-gearintermeshing with said spur-gears and adjustable with said eccentrically-journaled shaft and means for driving said spur-gears and the other of said rotary cutters.

15. In shearing-machines, a pair of cooperating rotary cutters, an adjustable shaft whereon one of said cutters is mounted and operating means for said cutters comprising a shaft held against lateral shift, drive-gears on said latter shaft and on said adjustable shaft and intermediate connecting-gearing between said gears arranged to shift with OARL E. ,LINGENFELTER.

Witnesses:

ALBERTA ADAMICK, HARRY L. CLAPP. 

